Window sash and frame



June 26, 1951 M. KwAsNlsKl WINDOW SASH AND FRAME 3 Sheets-Sheet 1 Filed June 4, 1946 VFU; Gr

r o u n e v n 5 micia a el Kwasn z'sKi Eng 'gigi Clbbornacg `lune 26, 1951 M. KwAsNlsKl 2,558,555

WINDOW SASH AND FRAME Filed June 4, 1946 3 Sheets-Sheet 2 if e? ngl'cza el KaJ'ansKi 51m/enter E93 @l Obbornacs June 26, 1951 M;KwAsNlsK1 wINnow sAsH AND FRAME 3 Sheets-Sheet 5 Filed June 4, 1946 FWS-" m Llcihael. Hwcxeaslr'. {Srzverzbor Patented June 26, 1951 UNITED STATES PATENT OFFICE WINDOW SASH AND FRAME Michael Kwasniski, Newark, N. J.

Application June 4, 1946, Serial No. 674,234

1 Claim.

This invention relates to a window sash and frame made of metal. More specifically, it deals with a novel construction of such units.

At the present time, most windows are made of wood. They are bulky and do not add materially to the appearance of the building.

One object of this invention is to provide a compact window unit made practically completely of metal and costing less than the wooden counterpart; Another object is to provide an eiiicient sealing means to prevent entrance of air into the building. Another object is to provide a sash assembly which will not be visible from the outside of the unit. Other objects will become apparent from the description which is to follow.

The invention may be more clearly understood by reference to the drawings in which Figure 1 is an exploded, partly cut-away view. Figure 2 is an isometric view of a section of the sealing element of the sash. Figure 3 illustrates the sealing of the lower sash with the sill, while Figure 4 is a front View of the whole window assembly. In Figure 5 is shown the sash side-section construction, in cross section, While Figure 6 is a cross sectional View of the top sash sections and upper frame structure. Figure 7 is a partially cut-away front view of the right side of the frame structure including a portion of the lower sash, while Figure 8 depicts a partial side view of the frame structure shown in Figure 7 with covering panel (a portion of which is cut away) attached. Similar numerals refer to similar parts in the various gures.

Referring again to the drawings, numeral I represents the lower sash while 2 is the upper one.

The sashes ride in side 3 of the frame. Numeral 4 indicates the sill, while 5 represents the upper section of the frame. Chains or cords 6 and 'I are attached to the sash sides at I8 and I I and the counterbalancing sash weights are designated as 8 and 9. The sides of the sashes are provided with an inverted T, 31, which rides in slots I2 cut out of the frame sides 3. The foot of the T, 31, is provided with a hook or loop 38 which projects inside of the frame, so that chains 6 and 'I are not visible from the inside or outside of the building. Pulleys 24 suspend chains 6 and l. Aprons I4, I5, I6, I'I, I8 and I9 are provided as trim and are attached to the building by screws 46.

Slots I2 are sealed off from the inside by mounting grooved panel 281 between the sash weights under the pulleys and the frame sides 3. Grooves 22 and 23 are provided to allow chains B and 1 to ride inside, an opening being left at the top as a lead to pulleys 24. Panel is mounted on the inside of frame sides 3 by screws 2I.

Lower section 4I of lower sash I is provided With a groove 42 fitting tongue 43 rising from sill 4. Aprons 29, 30, 3| and 32 may be provided as trim. All of these units are made of metal, preferably a light metal such as aluminum, magnesium, duralumin, and the like. The frame may be cast as one unit, while the sashes may also be cast in single units. Sill 28, which is of metal, may be provided with a panel 21 of wood or other non-conducting material, and this panel is fastened to the sill by means of screws 33.

As shown in Figure 5, the sash may be cast in one piece I. Lug 34 projects to hold window pane 26, while retaining strip 35 may be fastened on sash I by means of screw 36 to hold the pane in place. The T, 3l, rides in slot 45 of side 3.

In the upper section 5 of the frame, slot 4I] is cut out (Figure 6) to allow entrance and seating of inverted T, 44, which projects from the top of the upper sash 2. A grooved plate or panel similar to 20 may be placed over this slot 40 to eliminate air circulation inside of the unit.

The frame and aprons are also preferably made of metal such as magnesium, aluminum, duralumin, or other light metal.

I claim:

In a window unit comprising a frame in which a weight-counterbalanced metal sash rides, the sides of which comprise an inverted T, the bottom of the T protruding and riding in vertical slots in the sides of the frame, the improvement comprising a panel attached to and removable from the inner side of the frame between the frame side and the sash weight and of suflicient width to completely cover the slots in the sides of the frame, and vertical grooves in the side of the panel facing the sash side, in juxtaposition with said slots and of suflicient depth to allow riding therein of said T protruding member and any elements projecting therefrom.

MICHAEL KWASNISKI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,116,828 Markham Nov. 10, 1914 1,273,454 Campbell July 23, 1918 1,542,786 Fromhold June 16, 1925 1,627,653 Lancaster May 10, 192'? 1,682,669 Freeland Aug. 28, 1928 2,884,355 Peremi et al June 22, 1937 FOREIGN PATENTS Number Country Date 13,042 Australia 1929 

